Buggy code:
public JDBCLockManager getLockManager ( ) { } public JDBCFetchConfiguration getFetchConfiguration ( ) { } public void beginOptimistic ( ) { } public void rollbackOptimistic ( ) { } public void begin ( ) { } public void commit ( ) { } public void rollback ( ) { } public void retainConnection ( ) { } public void releaseConnection ( ) { } public Object getClientConnection ( ) { } public Connection getConnection ( ) { } protected DataSource getDataSource ( ) { } public boolean exists ( OpenJPAStateManager sm , Object context ) { } private boolean exists ( ClassMapping mapping , Object oid , Object context ) { } public boolean syncVersion ( OpenJPAStateManager sm , Object context ) { } public int compareVersion ( OpenJPAStateManager state , Object v1 , Object v2 ) { } public boolean initialize ( OpenJPAStateManager sm , PCState state , FetchConfiguration fetch , Object context ) { } protected boolean initializeState ( OpenJPAStateManager sm , PCState state , JDBCFetchConfiguration fetch , ConnectionInfo info ) throws ClassNotFoundException , SQLException { } private void setInverseRelation ( OpenJPAStateManager owner , ClassMapping mapping , Result res ) { } protected void setMappedBy ( OpenJPAStateManager sm , FieldMapping mappedByFieldMapping , Object mappedByObject ) { } protected void getVersion ( ClassMapping mapping , OpenJPAStateManager sm , Result res ) throws SQLException { } protected boolean isEmptyResult ( Result res ) throws SQLException { } protected Class < ? > getType ( Result res , ClassMapping mapping ) { } private Boolean customLoad ( OpenJPAStateManager sm , ClassMapping mapping , PCState state , JDBCFetchConfiguration fetch ) throws ClassNotFoundException , SQLException { } private Result getInitializeStateResult ( OpenJPAStateManager sm , ClassMapping mapping , JDBCFetchConfiguration fetch , int subs ) throws SQLException { } private Result getInitializeStateUnionResult ( final OpenJPAStateManager sm , ClassMapping mapping , final ClassMapping [ ] mappings , final JDBCFetchConfiguration fetch ) throws SQLException { } private boolean selectPrimaryKey ( OpenJPAStateManager sm , ClassMapping mapping , JDBCFetchConfiguration fetch ) throws SQLException { } public boolean load ( OpenJPAStateManager sm , BitSet fields , FetchConfiguration fetch , int lockLevel , Object context ) { } private void removeLoadedFields ( OpenJPAStateManager sm , BitSet fields ) { } public Collection loadAll ( Collection sms , PCState state , int load , FetchConfiguration fetch , Object context ) { } public void beforeStateChange ( OpenJPAStateManager sm , PCState fromState , PCState toState ) { } public Collection flush ( Collection sms ) { } public boolean cancelAll ( ) { } public boolean assignObjectId ( OpenJPAStateManager sm , boolean preFlush ) { } public boolean assignField ( OpenJPAStateManager sm , int field , boolean preFlush ) { } public Class < ? > getManagedType ( Object oid ) { } public Class < ? > getDataStoreIdType ( ClassMetaData meta ) { } public Object copyDataStoreId ( Object oid , ClassMetaData meta ) { } public Object newDataStoreId ( Object val , ClassMetaData meta ) { } public Id newDataStoreId ( long id , ClassMapping mapping , boolean subs ) { } public ResultObjectProvider executeExtent ( ClassMetaData meta , final boolean subclasses , FetchConfiguration fetch ) { } private BitSet selectExtent ( Select sel , ClassMapping mapping , JDBCFetchConfiguration fetch , boolean subclasses ) { } public StoreQuery newQuery ( String language ) { } public FetchConfiguration newFetchConfiguration ( ) { } public Seq getDataStoreIdSequence ( ClassMetaData meta ) { } public Seq getValueSequence ( FieldMetaData fmd ) { } public void close ( ) { } private void connect ( boolean ref ) { } protected JDBCStoreManager . RefCountConnection connectInternal ( ) throws SQLException { } public Connection getNewConnection ( ) { try { <START_BUG> return connectInternal ( ) ; <END_BUG> } catch ( SQLException e ) { throw SQLExceptions . getStore ( e , _dict ) ; } } public Object find ( Object oid , ValueMapping vm , JDBCFetchConfiguration fetch ) { } public Object load ( ClassMapping mapping , JDBCFetchConfiguration fetch , BitSet exclude , Result result ) throws SQLException { } private BitSet excludeInverseRelation ( ClassMapping mapping , ConnectionInfo info , BitSet exclude ) { } private void load ( ClassMapping mapping , OpenJPAStateManager sm , JDBCFetchConfiguration fetch , Result res ) throws SQLException { } private FieldMapping load ( ClassMapping mapping , OpenJPAStateManager sm , JDBCFetchConfiguration fetch , Result res , FieldMapping eagerToMany ) throws SQLException { } public boolean select ( Select sel , ClassMapping mapping , int subs , OpenJPAStateManager sm , BitSet fields , JDBCFetchConfiguration fetch , int eager , boolean ident , boolean outer ) { } private boolean getJoinedSupers ( Select sel , ClassMapping mapping , int subs , boolean outer ) { } private boolean needClassCondition ( ClassMapping mapping , int subs , OpenJPAStateManager sm ) { } private FieldMapping createEagerSelects ( Select sel , ClassMapping mapping , OpenJPAStateManager sm , BitSet fields , JDBCFetchConfiguration fetch , int eager ) { } private static boolean requiresSelect ( FieldMapping fm , OpenJPAStateManager sm , BitSet fields , JDBCFetchConfiguration fetch ) { } private int selectBaseMappings ( Select sel , ClassMapping mapping , ClassMapping orig , OpenJPAStateManager sm , BitSet fields , JDBCFetchConfiguration fetch , int eager , FieldMapping eagerToMany , boolean ident , boolean joined ) { } private boolean optSelect ( FieldMapping fm , Select sel , OpenJPAStateManager sm , JDBCFetchConfiguration fetch ) { } private void selectSubclassMappings ( Select sel , ClassMapping mapping , OpenJPAStateManager sm , JDBCFetchConfiguration fetch ) { } private static Joins joinSubclass ( Select sel , ClassMapping base , ClassMapping sub , Joins joins ) { } public void loadSubclasses ( ClassMapping mapping ) { } private void beforeExecuteStatement ( Statement stmnt ) { } private void afterExecuteStatement ( Statement stmnt ) { } FinderQueryImpl getFinder ( ClassMapping mapping , FetchConfiguration fetch ) { } boolean cacheFinder ( ClassMapping mapping , SelectExecutor select , FetchConfiguration fetch ) { } FinderCache getFinderCache ( ) { }

Fix:
return _ds . getConnection ( ) ;